A flexible and easy to use microcomputer program has been developed to predict the damage to facilities resulting from the effects of conventional explosions. This High Explosive Damage Assessment Model (HIXDAK) is intended to provide safety engineering offices and facility designers a tool for rapid evaluation of airblast damage to structures. The model was first reported at the 1988 Explosive Safety Seminar and has received widespread distribution within the U. S . Government and industry. This paper presents additional data which verifies the capability of HEXDAM to accurately predict structural damage for a wide range structure types and explosive events.